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آموزش زبان انگلیسی دوره دبیرستان

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A PARTICLE IN THE UNIVERSE

The earth seems big to us, but it is only one particle floating along with countless other particles in space. Our sun is another such particle. It is only a large star at the edge of our galaxy, the Milky Way.

Nine small planets and about two thousand smaller bodies all revolve round it in a fixed order. There are many stars larger and brighter than the sun in the Milky Way. There are also many millions of galaxies in the universe as big as, or bigger than , the Milky Way. The distance from the earth to other bodies in space is measured by astronomers in light years, that is, the distance (5.88 million miles) that light travels in one year. The farthest galaxies are more than two billion (= two million  million  ) light years away from the earth. Each galaxy is made up of millions of stars and satellites. There are vast distances between one galaxy and another.

A. Check the correct choice:

1. The earth is ............................ .

             a. the largest particle in space                          

             b. one of a few particles in space

             c. really a minute particle in space                    

            d. almost as big as other particles in space

2. The Milky Way, our galaxy, consists of ............................ .

            a. nine planets and 2000 smaller bodies              

            b. one star together with nine planets

           c. many millions of stars and revolving bodies    

           d. many larger and brighter stars than the sun

3. In space, distance is measured in light ............................ .

           a. years                      b. ratios                          

          c. ships                       d. meters

4. Light travels ............................ a year.

          a. 5.88 million miles  

          b. 946 billion kilometers    

         c. two billion miles   

        d. both a & b

5. We can conclude from the passage that a journey to the farthest galaxies ............................ .

         a. will soon become probable                

         b. will never be possible

         c. will no longer be a dream                  

        d. has already been taken


[ جمعه 5 دی 1393 ] [ 07:36 ب.ظ ] [ خلیل عبداللهی ]
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